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This is a simple set of command-line tools that is intended to be used to decode digital modulations used by ham radiooperators. The main focus is on digital voice modes.

Right now this project enables you to decode DMR and YSF, future plans include NXDN and D-Star.

The main use of this project is to run in the backend ofOpenWebRX, where itdecodes the available information, which is then displayed on the receiver's website.

Please make sure you install the following dependencies before compiling digiham:

• csdr (version 0.18 or later)
• codecserver
• ICU (for Debian, installlibicu-dev)

Most digital voice modes in the ham radio universe right now use some version of the AMBE digital voice codec. In orderto decode them, you will need to setup the correspoding decoding infrastructure.

This project comes with mbe_synthesizer that can send the received audio data to acodecserver instance for decoding.

The OpenWebRX project is hosting digiham packages in their repositories. Please click the respective link forDebian orUbuntu.

This project comes with a cmake build. It is recommended to build in a separate directory.

mkdir buildcd buildcmake ..makesudo make install

You can find shell scripts that show the basic usage of the components in theexamples folder.